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[1.8] Gui Scroll bar? [SOLVED]


Atijaf
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That has a somewhat complicated answer, but basically you check if the mouse is clicking within your scroll bar's current position and whether it is dragging up or down, then modify the position accordingly. You can also check for the mouse wheel if you want.

 

Each time the screen renders, you use the current position of the scroll bar to determine what part of your image to render, or how much of whatever needs to be inside that specific area to render.

 

While for 1.6.4, VSWE's Climbing the Interface Ladder series is excellent and explains very well how scroll bars function (among many other things). I highly recommend it.

 

It would be easiest to follow in 1.6.4 and then update to 1.8 later, but you can probably manage to do it on the fly as not much has changed since then as far as interfaces go.

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    • How to i searched shortly and found only how to uninstall the sdk 17 or something 
    • hi, im here againt because i need something, the all my overlays are 256x256, even those from some overlay tutorials, but i've seen some people that uses overlays of 1920x1080 and i tried but it kind of duplicate (my overlays of 256x256 works)   (1920x1080) this is how it should look: https://imgur.com/a/p8pXEzn and this is how IT LOOKS: https://imgur.com/a/4F35AAP mc.getTextureManager().bindTexture(textureLocation); //gui.drawTexturedModalRect(x, y, imageOffsetX, imageOffsetY, imageSizeX, imageSizeY,zLevel); gui.drawTexturedModalRect(x, y, 0, 0, 1920, 1080,100); mc.getTextureManager().bindTexture(AbstractGui.GUI_ICONS_LOCATION);  
    • Piston Block: public class HoneyStickyPistonBlock extends PistonBlock { private final boolean isSticky; public HoneyStickyPistonBlock(boolean sticky, Properties properties) { super(sticky, properties); this.setDefaultState(this.stateContainer.getBaseState().with(FACING, Direction.NORTH).with(EXTENDED, Boolean.valueOf(false))); this.isSticky = sticky; } @Override //Nothing edited, put in for checkformove() public void onBlockPlacedBy(World worldIn, BlockPos pos, BlockState state, LivingEntity placer, ItemStack stack) { if (!worldIn.isRemote) { this.checkForMove(worldIn, pos, state); } } @Override //Nothing edited, put in for checkformove() public void neighborChanged(BlockState state, World worldIn, BlockPos pos, Block blockIn, BlockPos fromPos, boolean isMoving) { if (!worldIn.isRemote) { this.checkForMove(worldIn, pos, state); } } @Override //Nothing edited, put in for checkformove() public void onBlockAdded(BlockState state, World worldIn, BlockPos pos, BlockState oldState, boolean isMoving) { if (!oldState.isIn(state.getBlock())) { if (!worldIn.isRemote && worldIn.getTileEntity(pos) == null) { this.checkForMove(worldIn, pos, state); } } } @Override //Nothing edited, may not be necessary public BlockState getStateForPlacement(BlockItemUseContext context) { return this.getDefaultState().with(FACING, context.getNearestLookingDirection().getOpposite()).with(EXTENDED, Boolean.valueOf(false)); } private void checkForMove(World worldIn, BlockPos pos, BlockState state) { Direction direction = state.get(FACING); boolean flag = this.shouldBeExtended(worldIn, pos, direction); if (flag && !state.get(EXTENDED)) { if ((new PistonBlockStructureHelper(worldIn, pos, direction, true)).canMove()) { worldIn.addBlockEvent(pos, this, 0, direction.getIndex()); } } else if (!flag && state.get(EXTENDED)) { BlockPos blockpos = pos.offset(direction, 2); BlockState blockstate = worldIn.getBlockState(blockpos); int i = 1; if (blockstate.isIn(Blocks.MOVING_PISTON) && blockstate.get(FACING) == direction) { TileEntity tileentity = worldIn.getTileEntity(blockpos); if (tileentity instanceof HoneyStickyPistonTileEntity) { HoneyStickyPistonTileEntity pistontileentity = (HoneyStickyPistonTileEntity)tileentity; if (pistontileentity.isExtending() && (pistontileentity.getProgress(0.0F) < 0.5F || worldIn.getGameTime() == pistontileentity.getLastTicked() || ((ServerWorld)worldIn).isInsideTick())) { i = 2; } } } worldIn.addBlockEvent(pos, this, i, direction.getIndex()); } } private boolean shouldBeExtended(World worldIn, BlockPos pos, Direction facing) { for(Direction direction : Direction.values()) { if (direction != facing && worldIn.isSidePowered(pos.offset(direction), direction)) { return true; } } if (worldIn.isSidePowered(pos, Direction.DOWN)) { return true; } else { BlockPos blockpos = pos.up(); for(Direction direction1 : Direction.values()) { if (direction1 != Direction.DOWN && worldIn.isSidePowered(blockpos.offset(direction1), direction1)) { return true; } } return false; } } @Override @Deprecated public boolean eventReceived(BlockState state, World worldIn, BlockPos pos, int id, int param) { Direction direction = state.get(FACING); if (!worldIn.isRemote) { boolean flag = this.shouldBeExtended(worldIn, pos, direction); if (flag && (id == 1 || id == 2)) { worldIn.setBlockState(pos, state.with(EXTENDED, Boolean.valueOf(true)), 2); return false; } if (!flag && id == 0) { return false; } } if (id == 0) { if (net.minecraftforge.event.ForgeEventFactory.onPistonMovePre(worldIn, pos, direction, true)) return false; if (!this.doMove(worldIn, pos, direction, true)) { return false; } worldIn.setBlockState(pos, state.with(EXTENDED, Boolean.valueOf(true)), 67); worldIn.playSound((PlayerEntity)null, pos, SoundEvents.BLOCK_PISTON_EXTEND, SoundCategory.BLOCKS, 0.5F, worldIn.rand.nextFloat() * 0.25F + 0.6F); } else if (id == 1 || id == 2) { if (net.minecraftforge.event.ForgeEventFactory.onPistonMovePre(worldIn, pos, direction, false)) return false; TileEntity tileentity1 = worldIn.getTileEntity(pos.offset(direction)); if (tileentity1 instanceof HoneyStickyPistonTileEntity) { ((HoneyStickyPistonTileEntity)tileentity1).clearPistonTileEntity(); } BlockState blockstate = Blocks.MOVING_PISTON.getDefaultState().with(MovingPistonBlock.FACING, direction).with(MovingPistonBlock.TYPE, PistonType.STICKY); worldIn.setBlockState(pos, blockstate, 20); worldIn.setTileEntity(pos, new HoneyStickyPistonTileEntity(this.getDefaultState().with(FACING, Direction.byIndex(param & 7)), direction, false, true)); worldIn.func_230547_a_(pos, blockstate.getBlock()); blockstate.updateNeighbours(worldIn, pos, 2); if (this.isSticky) { BlockPos blockpos = pos.add(direction.getXOffset() * 2, direction.getYOffset() * 2, direction.getZOffset() * 2); BlockState blockstate1 = worldIn.getBlockState(blockpos); boolean flag1 = false; if (blockstate1.isIn(Blocks.MOVING_PISTON)) { TileEntity tileentity = worldIn.getTileEntity(blockpos); if (tileentity instanceof HoneyStickyPistonTileEntity) { HoneyStickyPistonTileEntity pistontileentity = (HoneyStickyPistonTileEntity)tileentity; if (pistontileentity.getFacing() == direction && pistontileentity.isExtending()) { pistontileentity.clearPistonTileEntity(); flag1 = true; } } } if (!flag1) { if (id != 1 || blockstate1.isAir() || !canPush(blockstate1, worldIn, blockpos, direction.getOpposite(), false, direction) || blockstate1.getPushReaction() != PushReaction.NORMAL && !blockstate1.isIn(BlockInit.HONEY_STICKY_PISTON.get())) { worldIn.removeBlock(pos.offset(direction), false); } else { this.doMove(worldIn, pos, direction, false); } } } else { worldIn.removeBlock(pos.offset(direction), false); } worldIn.playSound((PlayerEntity)null, pos, SoundEvents.BLOCK_PISTON_CONTRACT, SoundCategory.BLOCKS, 0.5F, worldIn.rand.nextFloat() * 0.15F + 0.6F); } net.minecraftforge.event.ForgeEventFactory.onPistonMovePost(worldIn, pos, direction, (id == 0)); return true; } //Static method weirdness? might need to remove because it's not polymorphic public static boolean canPush(BlockState blockStateIn, World worldIn, BlockPos pos, Direction facing, boolean destroyBlocks, Direction direction) { if (pos.getY() >= 0 && pos.getY() <= worldIn.getHeight() - 1 && worldIn.getWorldBorder().contains(pos)) { if (blockStateIn.isAir()) { return true; } else if (!blockStateIn.isIn(Blocks.OBSIDIAN) && !blockStateIn.isIn(Blocks.CRYING_OBSIDIAN) && !blockStateIn.isIn(Blocks.RESPAWN_ANCHOR)) { if (facing == Direction.DOWN && pos.getY() == 0) { return false; } else if (facing == Direction.UP && pos.getY() == worldIn.getHeight() - 1) { return false; } else { if (!blockStateIn.isIn(Blocks.PISTON) && !blockStateIn.isIn(Blocks.STICKY_PISTON) && !blockStateIn.isIn(BlockInit.HONEY_STICKY_PISTON.get())) { if (blockStateIn.getBlockHardness(worldIn, pos) == -1.0F) { return false; } switch(blockStateIn.getPushReaction()) { case BLOCK: return false; case DESTROY: return destroyBlocks; case PUSH_ONLY: return facing == direction; } } else if (blockStateIn.get(EXTENDED)) { return false; } return !blockStateIn.hasTileEntity(); } } else { return false; } } else { return false; } } private boolean doMove(World worldIn, BlockPos pos, Direction directionIn, boolean extending) { BlockPos blockpos = pos.offset(directionIn); if (!extending && worldIn.getBlockState(blockpos).isIn(BlockInit.HONEY_STICKY_PISTON_HEAD.get())) { worldIn.setBlockState(blockpos, Blocks.AIR.getDefaultState(), 20); } PistonBlockStructureHelper pistonblockstructurehelper = new PistonBlockStructureHelper(worldIn, pos, directionIn, extending); if (!pistonblockstructurehelper.canMove()) { return false; } else { Map<BlockPos, BlockState> map = Maps.newHashMap(); List<BlockPos> list = pistonblockstructurehelper.getBlocksToMove(); List<BlockState> list1 = Lists.newArrayList(); for(int i = 0; i < list.size(); ++i) { BlockPos blockpos1 = list.get(i); BlockState blockstate = worldIn.getBlockState(blockpos1); list1.add(blockstate); map.put(blockpos1, blockstate); } List<BlockPos> list2 = pistonblockstructurehelper.getBlocksToDestroy(); BlockState[] ablockstate = new BlockState[list.size() + list2.size()]; Direction direction = extending ? directionIn : directionIn.getOpposite(); int j = 0; for(int k = list2.size() - 1; k >= 0; --k) { BlockPos blockpos2 = list2.get(k); BlockState blockstate1 = worldIn.getBlockState(blockpos2); TileEntity tileentity = blockstate1.hasTileEntity() ? worldIn.getTileEntity(blockpos2) : null; spawnDrops(blockstate1, worldIn, blockpos2, tileentity); worldIn.setBlockState(blockpos2, Blocks.AIR.getDefaultState(), 18); ablockstate[j++] = blockstate1; } for(int l = list.size() - 1; l >= 0; --l) { BlockPos blockpos3 = list.get(l); BlockState blockstate5 = worldIn.getBlockState(blockpos3); blockpos3 = blockpos3.offset(direction); map.remove(blockpos3); worldIn.setBlockState(blockpos3, Blocks.MOVING_PISTON.getDefaultState().with(FACING, directionIn), 68); worldIn.setTileEntity(blockpos3, new HoneyStickyPistonTileEntity(list1.get(l), directionIn, extending, false)); ablockstate[j++] = blockstate5; } if (extending) { PistonType pistontype = PistonType.STICKY; BlockState blockstate4 = BlockInit.HONEY_STICKY_PISTON_HEAD.get().getDefaultState().with(HoneyStickyPistonHeadBlock.FACING, directionIn).with(HoneyStickyPistonHeadBlock.TYPE, pistontype); BlockState blockstate6 = Blocks.MOVING_PISTON.getDefaultState().with(MovingPistonBlock.FACING, directionIn).with(MovingPistonBlock.TYPE, PistonType.STICKY); map.remove(blockpos); worldIn.setBlockState(blockpos, blockstate6, 68); worldIn.setTileEntity(blockpos, new HoneyStickyPistonTileEntity(blockstate4, directionIn, true, true)); } BlockState blockstate3 = Blocks.AIR.getDefaultState(); for(BlockPos blockpos4 : map.keySet()) { worldIn.setBlockState(blockpos4, blockstate3, 82); } for(Entry<BlockPos, BlockState> entry : map.entrySet()) { BlockPos blockpos5 = entry.getKey(); BlockState blockstate2 = entry.getValue(); blockstate2.updateDiagonalNeighbors(worldIn, blockpos5, 2); blockstate3.updateNeighbours(worldIn, blockpos5, 2); blockstate3.updateDiagonalNeighbors(worldIn, blockpos5, 2); } j = 0; for(int i1 = list2.size() - 1; i1 >= 0; --i1) { BlockState blockstate7 = ablockstate[j++]; BlockPos blockpos6 = list2.get(i1); blockstate7.updateDiagonalNeighbors(worldIn, blockpos6, 2); worldIn.notifyNeighborsOfStateChange(blockpos6, blockstate7.getBlock()); } for(int j1 = list.size() - 1; j1 >= 0; --j1) { worldIn.notifyNeighborsOfStateChange(list.get(j1), ablockstate[j++].getBlock()); } if (extending) { worldIn.notifyNeighborsOfStateChange(blockpos, BlockInit.HONEY_STICKY_PISTON_HEAD.get()); } return true; } } @Override public PushReaction getPushReaction(BlockState state) { return PushReaction.NORMAL; } } Piston Head Block: public class HoneyStickyPistonHeadBlock extends PistonHeadBlock{ private static final VoxelShape[] EXTENDED_SHAPES = getShapesForExtension(true); private static final VoxelShape[] UNEXTENDED_SHAPES = getShapesForExtension(false); private static VoxelShape[] getShapesForExtension(boolean extended) { return Arrays.stream(Direction.values()).map((direction) -> { return getShapeForDirection(direction, extended); }).toArray((id) -> { return new VoxelShape[id]; }); } private static VoxelShape getShapeForDirection(Direction direction, boolean shortArm) { switch(direction) { case DOWN: default: return VoxelShapes.or(PISTON_EXTENSION_DOWN_AABB, shortArm ? SHORT_DOWN_ARM_AABB : DOWN_ARM_AABB); case UP: return VoxelShapes.or(PISTON_EXTENSION_UP_AABB, shortArm ? SHORT_UP_ARM_AABB : UP_ARM_AABB); case NORTH: return VoxelShapes.or(PISTON_EXTENSION_NORTH_AABB, shortArm ? SHORT_NORTH_ARM_AABB : NORTH_ARM_AABB); case SOUTH: return VoxelShapes.or(PISTON_EXTENSION_SOUTH_AABB, shortArm ? SHORT_SOUTH_ARM_AABB : SOUTH_ARM_AABB); case WEST: return VoxelShapes.or(PISTON_EXTENSION_WEST_AABB, shortArm ? SHORT_WEST_ARM_AABB : WEST_ARM_AABB); case EAST: return VoxelShapes.or(PISTON_EXTENSION_EAST_AABB, shortArm ? SHORT_EAST_ARM_AABB : EAST_ARM_AABB); } } public HoneyStickyPistonHeadBlock(AbstractBlock.Properties properties) { super(properties); this.setDefaultState(this.stateContainer.getBaseState().with(FACING, Direction.NORTH).with(TYPE, PistonType.STICKY).with(SHORT, Boolean.valueOf(false))); } @Override //Nothing changed, may not be necessary public VoxelShape getShape(BlockState state, IBlockReader worldIn, BlockPos pos, ISelectionContext context) { return (state.get(SHORT) ? EXTENDED_SHAPES : UNEXTENDED_SHAPES)[state.get(FACING).ordinal()]; } private boolean isExtended(BlockState baseState, BlockState extendedState) { return extendedState.isIn(BlockInit.HONEY_STICKY_PISTON.get()) && extendedState.get(HoneyStickyPistonBlock.EXTENDED) && extendedState.get(FACING) == baseState.get(FACING); } @Override //Nothing changed, may not be necessary public void onBlockHarvested(World worldIn, BlockPos pos, BlockState state, PlayerEntity player) { if (!worldIn.isRemote && player.abilities.isCreativeMode) { BlockPos blockpos = pos.offset(state.get(FACING).getOpposite()); if (this.isExtended(state, worldIn.getBlockState(blockpos))) { worldIn.destroyBlock(blockpos, false); } } super.onBlockHarvested(worldIn, pos, state, player); } @Override //Nothing changed, may not be necessary public boolean isValidPosition(BlockState state, IWorldReader worldIn, BlockPos pos) { BlockState blockstate = worldIn.getBlockState(pos.offset(state.get(FACING).getOpposite())); return this.isExtended(state, blockstate) || blockstate.isIn(Blocks.MOVING_PISTON) && blockstate.get(FACING) == state.get(FACING); } @Override public ItemStack getItem(IBlockReader worldIn, BlockPos pos, BlockState state) { return new ItemStack(BlockInit.HONEY_STICKY_PISTON.get()); } }  
    • ive been trying to install forge 1.18.1 for 2 days now and with no success and i want to ask can some one upload their .minecraft folder with installed forge 1.18.1 ?
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